The problem with iinet and why some of their techs say their ADSL won't work is simply because their staff are incompetant at supporting mac on ADSL/don't want to bother supporting them. I rang them regarding setting up ADSL (my ADSL only came with Windoze instructions) and they said "sorry, can't help you. Macintosh isn't supported for ADSL". I did end up getting it working; their tech support was just non existent( it was hard enough even getting them to verify the settings I needed!)
However, since they *currently* use static Ips and not PPPoE, setting up actually was very painless once you worked out what goes where! Dave PS. Iinet just released some brand spanking new ADSL plans that have some nice touches (apparently unlimited download between 12am-7am!). They are actually shaping up to be some of the best deals in Australia. >>